Assessing the Effectiveness of IEEE 802.11e in Multi-Hop Mobile Network Environments
The IEEE 802.11e technology is receiving much interest due to the promising enhancements it will offer to wireless local area networks in terms of QoS support. Until now, research has focused on single hop, access point based environments, which are the most common. In this paper, the authors review the enhancements proposed in the last IEEE 802.11e draft (version 8.0). They analyze the performance of the IEEE 802.11e protocol on ad-hoc networks (multi-hop) in terms of throughput and end-to-end delay. They also measure the effectiveness for static and fully dynamic networks with a variable number of source stations. Eventually, they analyze the performance of IEEE 802.11e when legacy IEEE 802.11 stations (no IEEE 802.11e support) are present in the network.